CN113172338B - Dust removal and slag removal mechanism for laser welding of lithium battery - Google Patents
Dust removal and slag removal mechanism for laser welding of lithium battery Download PDFInfo
- Publication number
- CN113172338B CN113172338B CN202110310027.0A CN202110310027A CN113172338B CN 113172338 B CN113172338 B CN 113172338B CN 202110310027 A CN202110310027 A CN 202110310027A CN 113172338 B CN113172338 B CN 113172338B
- Authority
- CN
- China
- Prior art keywords
- welding
- plate
- pressure head
- slag
- station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/16—Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/703—Cooling arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a dust removal and slag removal mechanism for lithium battery laser welding, which comprises a tab transfer mechanism, a welding head pressing mechanism, a welding slag cleaning mechanism and a welding slag collecting box, wherein the tab transfer mechanism is connected with the welding head pressing mechanism through a screw; the welding head pressing mechanism is arranged on the lug transferring mechanism and is provided with a left station and a right station which are respectively a slag removing station positioned on the left side and a welding station positioned on the right side; a welding slag cleaning mechanism is arranged above the slag cleaning station, and a welding slag collecting box is arranged below the slag cleaning station; a lug transferring mechanism is arranged below the welding station; the welding head pressing mechanism is provided with a welding pressure head which can move left and right, and the welding pressure head is provided with a laser welding light passing hole. The mechanism can effectively prevent the melted materials from splashing everywhere, has the function of adsorption and dust removal, and can remove the smoke dust in time; the slag removal treatment is carried out on the unthreaded hole of the welding pressure head, so that the welding quality of the welding pressure head is prevented from being influenced by too much welding slag deposition; and the problem that the tab glue is melted due to overhigh temperature of the pressure head can be avoided by cooling the welding pressure head.
Description
Technical Field
The invention relates to the technical field of lithium battery welding, in particular to a dust removal and slag removal mechanism for lithium battery laser welding.
Background
The dust control in the manufacturing process of the lithium battery is very important for the safety performance of the lithium battery, particularly, welding slag generated in the tab welding process of the lithium battery in a lamination mode easily enters the battery cell if the control is not good, the slag causes short circuit inside the battery, danger occurs, and one welding slag becomes a great danger source. When the lithium battery tab is subjected to laser welding, a battery core pole piece (copper foil and aluminum foil) of the battery is melted and vaporized, and generated particles splash to the surface of a battery core diaphragm to burn or burn through the diaphragm, so that short circuit is caused. Inside entering into electric core easily when the particulate matter splashes, produce the pollution to electric core, can exert an influence to the performance of electric core when follow-up hot briquetting becomes. The laser welding method has the advantages that large heat is generated during laser welding, the material is melted when absorbing the heat, meanwhile, the partially melted material flies out at a high speed after being thermally expanded, and the flying-out material becomes tiny particles in the cooling process, so that smoke dust is generated. And the welding pressure head is used for pressing the cell pole piece and the lug during welding, and the pressure head is provided with a laser-welded light passing hole, and the size of the light passing hole is determined according to the welding area. When welding slag is attached to the unthreaded hole of the welding pressure head and too much, the passing area of laser is influenced, and therefore the welding area is influenced. When electric core utmost point ear welding, the welding pressure head compresses tightly utmost point ear and pole piece, and the heat during welding can conduct to the welding pressure head, and the overheated utmost point ear glue that can melt on the utmost point ear of welding pressure head influences the heat-seal effect of utmost point ear side when electric core encapsulation.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a dust removal and slag removal mechanism for laser welding of a lithium battery.
The invention is realized by the following technical scheme: a dust removal and slag removal mechanism for lithium battery laser welding comprises a tab transfer mechanism, a welding head pressing mechanism, a welding slag cleaning mechanism and a welding slag collecting box; the welding head pressing mechanism is arranged on the lug transferring mechanism and is provided with a left station and a right station which are respectively a slag removing station positioned on the left side and a welding station positioned on the right side; the welding slag cleaning mechanism is arranged above the slag cleaning station, and the welding slag collecting box is arranged below the slag cleaning station; the lug transferring mechanism is arranged below the welding station; the welding head pressing mechanism is provided with a welding pressure head capable of moving left and right, the welding pressure head is provided with a laser welding light passing hole, when a tab is welded by laser, the tab is transferred to a welding station by the tab transferring mechanism, the welding pressure head is pressed and is welded by the cell, after the laser welding is completed, the cell is taken away, the welding pressure head is transferred to a slag removing station, and the slag removing mechanism is right to remove slag from the welding pressure head.
The lug transferring mechanism can transfer the lug to the laser welding position of the lug transferring mechanism for welding, the welding head pressing mechanism can press the lug to be welded with the battery cell in a laser mode, so that the lug is connected with the battery cell, and after welding work is finished, a welding pressure head is transferred to a slag removing station to be subjected to slag removing work by the slag removing mechanism; the welding slag cleaning mechanism can be used for cleaning the welding pressure head, so that the welding quality of the welding pressure head is prevented from being influenced by too much welding slag deposition.
The lug transferring mechanism comprises a lug transferring negative pressure table with a negative pressure adsorption function, a negative pressure table lifting mechanism, a negative pressure table transferring cylinder, a first linear guide rail and a support; the first linear guide rail and the negative pressure table transfer cylinder are respectively arranged on the bracket, a linear sliding block is arranged on the first linear guide rail, and the linear sliding block is arranged at the tail end of a telescopic rod of the negative pressure table transfer cylinder; the negative pressure table lifting mechanism is arranged on the linear sliding block, and the bracket is provided with a sliding chute for the negative pressure table lifting mechanism to move; the lug transferring negative pressure platform is installed on the negative pressure platform lifting mechanism, and the lug adsorbs the lug transferring negative pressure platform through negative pressure. The lug is adsorbed on the lug transferring negative pressure platform through negative pressure, the negative pressure platform lifting mechanism can move back and forth through the negative pressure platform transferring cylinder, and after the lug is adsorbed to the lug transferring negative pressure platform through a sucker of a lug loading station in the lug transferring negative pressure platform, the lug transferring negative pressure platform is pushed to a laser welding position through the negative pressure platform transferring cylinder.
The welding head pressing mechanism comprises a dust removal suction nozzle, a supporting plate, a dust removal anti-splashing sleeve, a welding pressure head adjusting vertical plate, a welding pressure head fixing plate, a pneumatic sliding table, a welding pressure head mounting plate, a second linear guide rail, a sliding block fixing plate, a sliding block, a floating joint, a cylinder fixing block, a translation cylinder, a rib plate, a pressing mechanism mounting plate, a cooling fan, a fan bracket and an exhaust fan; the pressing mechanism mounting plate comprises a transverse plate and a vertical plate, the vertical plate is vertically mounted on the transverse plate, one end of the rib plate is fixed on the vertical plate, the other end of the rib plate is fixed on the transverse plate, and the transverse plate is mounted on the support; the welding pressure head mounting plate is mounted at the upper end of the vertical plate, the translation cylinder is arranged on the welding pressure head mounting plate, the welding pressure head mounting plate is provided with a sliding groove, the upper side and the lower side of the sliding groove are respectively provided with a second linear guide rail, and two ends of the sliding block fixing plate are respectively mounted on the second linear guide rails through first sliding blocks; the sliding block is fixed on the sliding block fixing plate, and the telescopic rod of the translation cylinder is connected with the sliding block through the floating joint; the pneumatic sliding table is installed on the sliding block fixing plate, the welding pressure head fixing plate is installed on the pneumatic sliding table, and the welding pressure head adjusting vertical plates are respectively arranged at two ends of the welding pressure head fixing plate; the lower end of the welding pressure head adjusting vertical plate is provided with the welding pressure head, the supporting plate is arranged in the middle of the welding pressure head adjusting vertical plate, the dust removal anti-splash sleeve is fixed on the supporting plate and positioned above the welding pressure head, the dust removal suction nozzle is arranged below the dust removal anti-splash sleeve, and the dust removal suction nozzle is connected with an exhaust fan through a pipeline; the heat radiation fan is arranged at the bottom of the sliding block fixing plate and is aligned to the welding pressure head. The pole piece and the pole lug can be tightly pressed by the welding pressure head through the pneumatic sliding table, and the welding pressure head can adjust the corresponding pole lug width through the welding pressure head adjusting vertical plate and the welding pressure head fixing plate; the left and right stations of the welding pressure head can be switched by matching the sliding block fixing plate, the sliding block, the floating joint, the cylinder fixing block and the translation cylinder; the fan bracket is used for installing a cooling fan and cooling the welding pressure head by blowing air through the cooling fan; when the exhaust fan is started, the smoke dust can be extracted out through the dust removal suction nozzle and the pipeline.
One row of mounting holes has been seted up to welding pressure head fixed plate lower extreme, welding pressure head adjustment riser passes through construction bolt and can dismantle and install adjustably on the mounting hole. The arrangement of the mounting holes in rows can adjust the mounting position of the welding pressure head adjusting vertical plate so as to be suitable for the lugs of different specifications.
The welding slag cleaning mechanism comprises a firing pin, a firing pin fixing block, a spacing adjusting plate, a transfer plate, a cleaning mechanism mounting plate, a linear bearing, a guide rod, an adjusting cylinder and a cleaning mechanism fixing plate; the cleaning mechanism fixing plate is arranged on the welding pressure head mounting plate and is positioned on the slag removing station; one end of the cleaning mechanism mounting plate is fixed on the cleaning mechanism fixing plate, and the other end of the cleaning mechanism mounting plate is provided with the linear bearing; the adjusting cylinder is installed on the cleaning mechanism fixing plate, the telescopic rod of the adjusting cylinder is fixed on the adapter plate, one end of the guide rod is fixed on the adapter plate, and the other end of the guide rod is inserted into the linear bearing and can slide up and down along the linear bearing; the space adjusting plate is mounted on the adapter plate, the firing pin is fixed on the firing pin fixing block, and the firing pin fixing block is adjustably arranged on the space adjusting plate. The firing pin can be adjusted to be consistent with the distance between the firing pin and the welding pressure head through the adjusting cylinder; through the control of adjusting cylinder, the firing pin can insert in the light hole of crossing of welding pressure head, makes the welding slag clear away through pinhole complex clearance friction. The inner wall of the dust-removing anti-splashing sleeve is cleaned while the welding pressure head is cleaned, and the removed welding slag and the like fall into the welding slag collecting box at the bottom.
Two linear bearings are arranged and are respectively positioned on two sides of the adjusting cylinder, and two guide rods are arranged and are respectively installed at two ends of the adapter plate; the two striker fixing blocks are respectively adjustably arranged at two ends of the spacing adjusting plate and can adjust the spacing along the spacing adjusting plate in a sliding manner.
The welding slag collecting device is characterized by further comprising a positioning pin, a collecting box placing plate and collecting box supporting columns, wherein the welding slag collecting box is arranged on the collecting box placing plate, the positioning pin is installed on the collecting box placing plate on the two sides of the welding slag collecting box and abuts against the two sides of the welding slag collecting box, and the two sides of the bottom of the collecting box placing plate are fixed on the support through the collecting box supporting columns respectively.
Compared with the prior art, the invention has the advantages that: the mechanism can effectively prevent the melted materials from splashing everywhere, has the function of adsorption and dust removal, and can remove the smoke dust in time; the slag removal treatment is carried out on the unthreaded hole of the welding pressure head, so that the welding quality of the welding pressure head is prevented from being influenced by too much welding slag deposition; and the problem that the tab glue is melted due to overhigh temperature of the pressure head can be avoided by cooling the welding pressure head.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a tab transfer mechanism according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a bonding tool hold-down mechanism according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of a welding slag cleaning mechanism according to an embodiment of the invention.
The reference numerals in the figures mean: 1. a tab transfer mechanism; 2. a welding head pressing mechanism; 3. a welding slag cleaning mechanism; 4. positioning pins; 5. a collection box placing plate; 6. a welding slag collecting box; 7. a collection box support; 8. an electric core; 101. a tab transfer negative pressure table; 102. a tab; 103. a negative pressure table lifting mechanism; 104. a negative pressure table transfer cylinder; 105. a first linear guide rail; 106. a support; 201. welding a pressure head; 202. a dust removal suction nozzle; 203. a support plate; 204. a dust-removing anti-splashing sleeve; 205. adjusting a vertical plate by a welding pressure head; 206. welding a pressure head fixing plate; 207. a pneumatic sliding table; 208. welding a pressure head mounting plate; 209. a second linear guide; 210. a slider fixing plate; 211. a slider; 212. a floating joint; 213. a cylinder fixing block; 214. a translation cylinder; 215. a rib plate; 216. a pressing mechanism mounting plate; 217. a heat radiation fan; 218. a fan bracket; 301. a striker; 302. a firing pin fixing block; 303. a spacing adjustment plate; 304. an adapter plate; 305. cleaning mechanism mounting plates; 306. a linear bearing; 307. a guide rod; 308. an adjusting cylinder; 309. cleaning mechanism fixed plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Examples
Referring to fig. 1 to 4, the dust removal and slag removal mechanism for lithium battery laser welding comprises a tab transfer mechanism 1, a welding head pressing mechanism 2, a slag removal mechanism 3 and a slag collection box 6; the welding head pressing mechanism 2 is arranged on the lug transferring mechanism 1, and the welding head pressing mechanism 2 is provided with a left station and a right station which are respectively a slag removing station positioned on the left side and a welding station positioned on the right side; a welding slag cleaning mechanism 3 is arranged above the slag cleaning station, and a welding slag collecting box 6 is arranged below the slag cleaning station; a lug transferring mechanism 1 is arranged below the welding station; bonding tool hold-down mechanism 2 is equipped with the welding pressure head 201 that can remove about, and welding pressure head 201 has seted up laser welding's the light hole of crossing, and during laser welding utmost point ear 102, utmost point ear 102 shifts to the welding station through utmost point ear transfer mechanism 1 and compresses tightly and carry out laser welding with electric core 8 by welding pressure head 201, and after laser welding accomplished, tak away electric core 8, welding pressure head 201 shifts to on the scarfing cinder station, and scarfing cinder clearance mechanism 3 carries out the scarfing cinder to welding pressure head 201.
The tab transferring mechanism 1 can transfer a tab 102 to a laser welding position of the mechanism for welding, the welding head pressing mechanism 2 can press the tab 102 to be welded with the battery cell 8 through laser welding, so that the tab 102 is connected with the battery cell 8, and after the welding operation is finished, the welding pressure head 201 is transferred to a slag removal station to be subjected to slag removal operation through the slag removal mechanism 3; the slag cleaning mechanism 3 can perform slag cleaning treatment on the welding pressure head 201, and avoid the welding pressure head 201 from influencing the welding quality due to too much slag deposition.
The tab transferring mechanism 1 comprises a tab transferring negative pressure table 101 with a negative pressure adsorption function, a negative pressure table lifting mechanism 103, a negative pressure table transferring cylinder 104, a first linear guide rail 105 and a support 106; the first linear guide rail 105 and the negative pressure table transfer cylinder 104 are respectively arranged on the bracket 106, a linear sliding block is arranged on the first linear guide rail 105, and the linear sliding block is arranged at the tail end of a telescopic rod of the negative pressure table transfer cylinder 104; the negative pressure platform lifting mechanism 103 is arranged on the linear slide block, and the bracket 106 is provided with a chute for the negative pressure platform lifting mechanism 103 to move; the tab transferring negative pressure table 101 is mounted on a negative pressure table lifting mechanism 103, and the tab 102 is adsorbed on the tab transferring negative pressure table 101 by negative pressure. The tab 102 is adsorbed on the tab transfer negative pressure table 101 through negative pressure, the negative pressure table lifting mechanism 103 can move back and forth through the negative pressure table transfer cylinder 104, and after the tab 102 is adsorbed to the tab transfer negative pressure table 101 through a sucker of a feeding station of the tab 102 in the tab transfer negative pressure table 101, the tab transfer negative pressure table 101 is pushed to a laser welding position through the negative pressure table transfer cylinder 104.
The welding head pressing mechanism 2 comprises a dust removing suction nozzle 202, a supporting plate 203, a dust removing anti-splashing sleeve 204, a welding pressure head adjusting vertical plate 205, a welding pressure head fixing plate 206, a pneumatic sliding table 207, a welding pressure head mounting plate 208, a second linear guide rail 209, a sliding block fixing plate 210, a sliding block 211, a floating joint 212, a cylinder fixing block 213, a translation cylinder 214, a rib plate 215, a pressing mechanism mounting plate 216, a cooling fan 217, a fan bracket 218 and an exhaust fan; the pressing mechanism mounting plate 216 comprises a transverse plate and a vertical plate, the vertical plate is vertically mounted on the transverse plate, one end of the rib plate 215 is fixed on the vertical plate, the other end of the rib plate is fixed on the transverse plate, and the transverse plate is mounted on the support 106; the welding pressure head mounting plate 208 is mounted at the upper end of the vertical plate, the translation cylinder 214 is arranged on the welding pressure head mounting plate 208, the welding pressure head mounting plate 208 is provided with a sliding groove, the upper side and the lower side of the sliding groove are respectively provided with a second linear guide rail 209, and two ends of the sliding block fixing plate 210 are respectively mounted on the second linear guide rails 209 through first sliding blocks; the sliding block 211 is fixed on the sliding block fixing plate 210, and the telescopic rod of the translation cylinder 214 is connected with the sliding block 211 through the floating joint 212; the pneumatic sliding table 207 is installed on the sliding block fixing plate 210, the welding pressure head fixing plate 206 is installed on the pneumatic sliding table 207, and the two ends of the welding pressure head fixing plate 206 are respectively provided with a welding pressure head adjusting vertical plate 205; the lower end of a welding pressure head adjusting vertical plate 205 is provided with a welding pressure head 201, a support plate 203 is arranged in the middle of the welding pressure head adjusting vertical plate 205, a dust removal anti-splash sleeve 204 is fixed on the support plate 203 and positioned above the welding pressure head 201, a dust removal suction nozzle 202 is arranged below the dust removal anti-splash sleeve 204, and the dust removal suction nozzle 202 is connected with an exhaust fan through a pipeline; a heat dissipation fan 217 is installed at the bottom of the slider fixing plate 210, and the heat dissipation fan 217 is aligned with the welding ram 201. The pole piece and the pole lug 102 can be pressed tightly by the welding pressure head 201 through the pneumatic sliding table 207, and the width of the pole lug 102 corresponding to the welding pressure head 201 can be adjusted by the welding pressure head adjusting vertical plate 205 and the welding pressure head fixing plate 206; the left and right stations of the welding pressure head 201 can be switched by the matching of the sliding block fixing plate 210, the sliding block 211, the floating joint 212, the cylinder fixing block 213 and the translation cylinder 214; the fan bracket 218 is used for installing a cooling fan 217, and the welding pressure head 201 is cooled by blowing air through the cooling fan 217; when the exhaust fan is started, the smoke dust can be extracted through the dust removal suction nozzle 202 and the pipeline.
A row of mounting holes are formed in the lower end of the welding pressure head fixing plate 206, and the welding pressure head adjusting vertical plate 205 is detachably and adjustably mounted on the mounting holes through mounting bolts. The arrangement of the rows of mounting holes can adjust the mounting position of the welding pressure head to adjust the vertical plate 205 so as to be suitable for the lugs 102 with different specifications.
The slag cleaning mechanism 3 comprises a firing pin 301, a firing pin fixing block 302, a spacing adjusting plate 303, an adapter plate 304, a cleaning mechanism mounting plate 305, a linear bearing 306, a guide rod 307, an adjusting cylinder 308 and a cleaning mechanism fixing plate 309; the cleaning mechanism fixing plate 309 is arranged on the welding pressure head mounting plate 208 and is positioned on a slag removal station; one end of the cleaning mechanism mounting plate 305 is fixed on the cleaning mechanism fixing plate 309, and the other end thereof is provided with a linear bearing 306; the adjusting cylinder 308 is installed on the fixed plate 309 of the cleaning mechanism, the telescopic rod of the adjusting cylinder is fixed on the adapter plate 304, one end of the guide rod 307 is fixed on the adapter plate 304, and the other end of the guide rod is inserted into the linear bearing 306 and can slide up and down; a spacing adjustment plate 303 is mounted on the adapter plate 304, the striker 301 is fixed to the striker fixing block 302, and the striker fixing block 302 is adjustably provided on the spacing adjustment plate 303. The distance between the firing pin 301 and the welding pressure head 201 can be adjusted to be consistent through the adjusting air cylinder 308; through the control of the adjusting cylinder 308, the firing pin 301 can be inserted into the light passing hole of the welding pressure head 201, and the welding slag is removed through the clearance friction of the pin hole fit. The inner wall of the dust removal anti-spattering sleeve 204 is cleaned while the welding ram 201 is cleaned, and the removed welding slag and the like fall into the welding slag collecting box 6 at the bottom.
Two linear bearings 306 are respectively arranged at two sides of the adjusting cylinder 308, and two guide rods 307 are respectively arranged at two ends of the adapter plate 304; two striker fixing blocks 302 are provided, and are adjustably provided at both ends of the spacing adjustment plate 303, respectively, and are slidable along the same to adjust the spacing.
Still include locating pin 4, collect the box and place board 5, collect box pillar 7, welding slag collects the box 6 and sets up on collecting the box and place board 5, and locating pin 4 is installed on the box of collecting of welding slag collection 6 both sides is placed board 5 and is leaned on welding slag collection 6 both sides, and the box of collecting is placed board 5 bottom both sides and is fixed on support 106 through collecting box pillar 7 respectively.
The tab 102 is transferred from the tab 102 loading station to the welding station through the tab transfer mechanism 1, so that the tab 102 and the electrode sheet of the battery cell 8 are overlapped together. The cylinder of control welding pressure head 201 promotes welding pressure head 201 and compresses tightly electric core 8 pole piece and utmost point ear 102, and laser welds utmost point ear 102 through the unthreaded hole of welding pressure head 201, starts the air exhauster simultaneously and prevents splashing cover 204 internal suction dust removal that splashes removing dust through the dust removal pipeline, and the welding is accomplished the back, and welding pressure head 201 rises to tak away electric core 8, and welding pressure head 201 wholly moves to the scarfing cinder station on the left side and carries out the scarfing cinder to welding pressure head 201. During slag removal, the striker 301 is inserted into the dust removal anti-splash sleeve 204 from the top, passes through the clearance hole of the welding pressure head 201, rapidly moves back and forth for 2-3 times to remove slag from the clearance hole of the welding pressure head, and removes splashes adhered to the welding pressure head 201 and the dust removal anti-splash sleeve 204. In order to prevent the welding pressure head 201 from being overheated during laser welding, the cooling fan 217 below the welding pressure head is started to blow the welding pressure head 201 for cooling regularly, so that the purpose of cooling is achieved, and the tab 102 is prevented from being scalded.
The technical effects of the embodiment are as follows:
1) Preventing spattering during laser welding
When the lithium battery tab 102 is subjected to laser welding, a battery cell 8 pole piece (copper foil and aluminum foil) of the battery is melted and vaporized, and generated particles splash to the surface of a battery cell 8 diaphragm to burn or burn through the diaphragm, so that short circuit is caused. Inside entering into electric core 8 easily when the particulate matter splashes, produce the pollution to electric core 8, can exert an influence to electric core 8's performance when follow-up hot briquetting becomes. This mechanism has set up the device (dustproof cover of preventing splashing) of sheltering from splash through laser welding region, and the material that can be fine after preventing the melting splashes everywhere.
2) Timely removing smoke dust and splash generated during welding
The laser welding generates larger heat, the material is melted when absorbing the heat, meanwhile, the partially melted material flies out at a higher speed after being thermally expanded, and the flying-out material becomes tiny particles in the cooling process, thereby generating smoke dust. This mechanism has the absorption, the dust removal function of smoke and dust in the design on sheltering from the device that splashes, produces suction to the welding area through the exhaust line, and timely clears away the smoke and dust through the dust removal pipeline that induced drafts.
3) Avoid the welding pressure head 201 to lead to the unthreaded hole and adhere to the welding slag
And the welding pressure head 201 is used for compressing the pole piece of the battery cell 8 and the pole lug 102 during welding, and the pressure head is provided with a laser-welded light passing hole, and the size of the light passing hole is determined according to the welding area. When the welding slag is attached to the light passing hole of the welding pressure head 201 and too much, the passing area of the laser is affected, and thus the welding area is affected. This mechanism is after laser welding certain time, and the excessive unthreaded hole of welding pressure head 201 is carried out the scarfing cinder to the welding pressure head 201 to the accessible that sets up except that the welding slag device (welding slag clearance mechanism 3) handles, avoids welding pressure head 201 because of the welding slag deposit too much influences welding quality.
4) The welding pressure head 201 dissipates heat to prevent the welding pressure head 201 from melting the glue of the tab 102
When 8 utmost point ear 102 of electric core welded, welding pressure head 201 compressed tightly utmost point ear 102 and pole piece, and the heat during the welding can conduct to welding pressure head 201, and welding pressure head 201 is overheated can melt utmost point ear 102 on the utmost point ear 102 and glue, and the heat-seal effect of utmost point ear 102 side when influencing the encapsulation of electric core 8. The mechanism reduces the temperature of the welding pressure head 201 by adding a heat dissipation device (a heat dissipation fan 217), so as to avoid the problem that the lug 102 glue is melted due to overhigh temperature of the pressure head.
The above detailed description is directed to a specific example of a possible embodiment of the present invention, which is not intended to limit the scope of the invention, but rather the scope of the invention is intended to include all equivalent implementations or modifications without departing from the scope of the invention.
Claims (7)
1. The utility model provides a lithium cell laser welding is with dust removal scarfing cinder mechanism which characterized in that: the welding device comprises a lug transferring mechanism, a welding head pressing mechanism, a welding slag cleaning mechanism and a welding slag collecting box; the welding head pressing mechanism is arranged on the lug transferring mechanism and is provided with a left station and a right station which are respectively a slag removing station positioned on the left side and a welding station positioned on the right side; the welding slag cleaning mechanism is arranged above the slag cleaning station, and the welding slag collecting box is arranged below the slag cleaning station; the lug transferring mechanism is arranged below the welding station; welding head hold-down mechanism is equipped with the welding pressure head that can remove about moving, the laser-welded hole of crossing is seted up to the welding pressure head, and during laser welding utmost point ear, utmost point ear passes through utmost point ear transfer mechanism shifts to the welding station by the welding pressure head compresses tightly and carries out laser welding with electric core, and after laser welding was accomplished, tak eoff away electric core, the welding pressure head shifts to on the scarfing cinder station, welding slag clearance mechanism is right the welding pressure head is scarfing cinder.
2. The lithium battery laser welding of claim 1 is with dust removal scarfing cinder mechanism, characterized in that: the lug transferring mechanism comprises a lug transferring negative pressure table with a negative pressure adsorption function, a negative pressure table lifting mechanism, a negative pressure table transferring cylinder, a first linear guide rail and a support; the first linear guide rail and the negative pressure table transfer cylinder are respectively arranged on the bracket, a linear sliding block is arranged on the first linear guide rail, and the linear sliding block is arranged at the tail end of a telescopic rod of the negative pressure table transfer cylinder; the negative pressure table lifting mechanism is arranged on the linear sliding block, and the bracket is provided with a sliding chute for the negative pressure table lifting mechanism to move; the lug transferring negative pressure platform is installed on the negative pressure platform lifting mechanism, and the lug is adsorbed on the lug transferring negative pressure platform through negative pressure.
3. The lithium battery laser welding of claim 2 is with dust removal scarfing cinder mechanism, characterized in that: the welding head pressing mechanism comprises a dust removal suction nozzle, a supporting plate, a dust removal anti-splashing sleeve, a welding pressure head adjusting vertical plate, a welding pressure head fixing plate, a pneumatic sliding table, a welding pressure head mounting plate, a second linear guide rail, a sliding block fixing plate, a sliding block, a floating joint, a cylinder fixing block, a translation cylinder, a rib plate, a pressing mechanism mounting plate, a cooling fan, a fan support and an exhaust fan; the pressing mechanism mounting plate comprises a transverse plate and a vertical plate, the vertical plate is vertically mounted on the transverse plate, one end of the rib plate is fixed on the vertical plate, the other end of the rib plate is fixed on the transverse plate, and the transverse plate is mounted on the support; the welding pressure head mounting plate is mounted at the upper end of the vertical plate, the translation cylinder is arranged on the welding pressure head mounting plate, the welding pressure head mounting plate is provided with a sliding groove, the upper side and the lower side of the sliding groove are respectively provided with a second linear guide rail, and two ends of the sliding block fixing plate are respectively mounted on the second linear guide rails through first sliding blocks; the sliding block is fixed on the sliding block fixing plate, and the telescopic rod of the translation cylinder is connected with the sliding block through the floating joint; the pneumatic sliding table is installed on the sliding block fixing plate, the welding pressure head fixing plate is installed on the pneumatic sliding table, and the welding pressure head adjusting vertical plates are respectively arranged at two ends of the welding pressure head fixing plate; the lower end of the welding pressure head adjusting vertical plate is provided with the welding pressure head, the supporting plate is arranged in the middle of the welding pressure head adjusting vertical plate, the dust removal anti-splash sleeve is fixed on the supporting plate and positioned above the welding pressure head, the dust removal suction nozzle is arranged below the dust removal anti-splash sleeve, and the dust removal suction nozzle is connected with an exhaust fan through a pipeline; the heat dissipation fan is installed at the bottom of the slider fixing plate and is aligned to the welding pressure head.
4. The lithium battery laser welding of claim 3 is with dust removal scarfing cinder mechanism, characterized in that: one row of mounting holes have been seted up to welding pressure head fixed plate lower extreme, welding pressure head adjustment riser passes through construction bolt and can dismantle and install adjustably on the mounting hole.
5. The lithium battery laser welding of claim 3 is with dust removal scarfing cinder mechanism, characterized in that: the welding slag cleaning mechanism comprises a firing pin, a firing pin fixing block, a spacing adjusting plate, a transfer plate, a cleaning mechanism mounting plate, a linear bearing, a guide rod, an adjusting cylinder and a cleaning mechanism fixing plate; the cleaning mechanism fixing plate is arranged on the welding pressure head mounting plate and is positioned on the slag removing station; one end of the cleaning mechanism mounting plate is fixed on the cleaning mechanism fixing plate, and the other end of the cleaning mechanism mounting plate is provided with the linear bearing; the adjusting cylinder is installed on the cleaning mechanism fixing plate, the telescopic rod of the adjusting cylinder is fixed on the adapter plate, one end of the guide rod is fixed on the adapter plate, and the other end of the guide rod is inserted into the linear bearing and can slide up and down along the linear bearing; the space adjusting plate is mounted on the adapter plate, the firing pin is fixed on the firing pin fixing block, and the firing pin fixing block is adjustably arranged on the space adjusting plate.
6. The lithium battery laser welding of claim 5 is with dust removal scarfing cinder mechanism, characterized in that: two linear bearings are arranged and are respectively positioned on two sides of the adjusting cylinder, and two guide rods are arranged and are respectively installed at two ends of the adapter plate; the two striker fixing blocks are respectively adjustably arranged at two ends of the spacing adjusting plate and can adjust the spacing along the spacing adjusting plate in a sliding manner.
7. The lithium battery laser welding of claim 2 is with dust removal scarfing cinder mechanism, characterized in that: the welding slag collecting device is characterized by further comprising a positioning pin, a collecting box placing plate and collecting box supporting columns, wherein the welding slag collecting box is arranged on the collecting box placing plate, the positioning pin is installed on the collecting box placing plate on the two sides of the welding slag collecting box and abuts against the two sides of the welding slag collecting box, and the two sides of the bottom of the collecting box placing plate are fixed on the support through the collecting box supporting columns respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110310027.0A CN113172338B (en) | 2021-03-23 | 2021-03-23 | Dust removal and slag removal mechanism for laser welding of lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110310027.0A CN113172338B (en) | 2021-03-23 | 2021-03-23 | Dust removal and slag removal mechanism for laser welding of lithium battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113172338A CN113172338A (en) | 2021-07-27 |
| CN113172338B true CN113172338B (en) | 2022-10-14 |
Family
ID=76922369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110310027.0A Active CN113172338B (en) | 2021-03-23 | 2021-03-23 | Dust removal and slag removal mechanism for laser welding of lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113172338B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114406548B (en) * | 2022-02-25 | 2024-08-23 | 璋祐科技(深圳）有限公司 | Welding mechanism with electrode cleaning function |
| CN114589402B (en) * | 2022-03-15 | 2024-09-13 | 广州工业技术研究院 | Laser welding device for multilayer current collector and outer lug |
| CN114799694B (en) * | 2022-05-13 | 2023-02-10 | 井关农机(常州)有限公司 | Automatic welding tool system of rice transplanter |
| CN116551284B (en) * | 2023-05-11 | 2023-12-26 | 兴化市兴东铸钢有限公司 | Welding device for splicing grate plates of grate cooler |
| CN117961383B (en) * | 2024-03-28 | 2024-06-25 | 中铁城建集团第一工程有限公司 | Special rack for H-shaped steel assembly and H-shaped steel assembly method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201189601Y (en) * | 2008-05-06 | 2009-02-04 | 天津力神电池股份有限公司 | Clamper for laser beam welding of lithium ionic cell |
| JP2013114771A (en) * | 2011-11-25 | 2013-06-10 | Toyota Motor Corp | Fuel battery |
| CN205927697U (en) * | 2016-08-13 | 2017-02-08 | 德尔福（上海）动力推进系统有限公司 | Detach device of oil pump body welding slag |
| CN207547108U (en) * | 2017-10-24 | 2018-06-29 | 大族激光科技产业集团股份有限公司 | For the dust-extraction unit of lithium battery welding |
| CN207806913U (en) * | 2018-01-26 | 2018-09-04 | 上海涵树实业有限公司 | A kind of laser welding welding slag cleaning plant |
| CN108723592A (en) * | 2018-06-07 | 2018-11-02 | 安徽海锂子新能源科技股份有限公司 | A kind of lithium battery Soft Roll welding soldering set tooling |
| CN111112836A (en) * | 2020-01-20 | 2020-05-08 | 大族激光科技产业集团股份有限公司 | Integrated laser continuous welding device and battery assembling equipment |
| CN211437142U (en) * | 2019-09-26 | 2020-09-08 | 上海君屹工业自动化股份有限公司 | Clean mechanism of lithium cell laser welding anchor clamps copper mouth |
| CN211438587U (en) * | 2019-11-20 | 2020-09-08 | 深圳市嘉联激光有限公司 | Laser welding apparatus |
| CN212552253U (en) * | 2020-05-26 | 2021-02-19 | 捷威动力工业嘉兴有限公司 | Laser welding dust removal mechanism |
-
2021
- 2021-03-23 CN CN202110310027.0A patent/CN113172338B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201189601Y (en) * | 2008-05-06 | 2009-02-04 | 天津力神电池股份有限公司 | Clamper for laser beam welding of lithium ionic cell |
| JP2013114771A (en) * | 2011-11-25 | 2013-06-10 | Toyota Motor Corp | Fuel battery |
| CN205927697U (en) * | 2016-08-13 | 2017-02-08 | 德尔福（上海）动力推进系统有限公司 | Detach device of oil pump body welding slag |
| CN207547108U (en) * | 2017-10-24 | 2018-06-29 | 大族激光科技产业集团股份有限公司 | For the dust-extraction unit of lithium battery welding |
| CN207806913U (en) * | 2018-01-26 | 2018-09-04 | 上海涵树实业有限公司 | A kind of laser welding welding slag cleaning plant |
| CN108723592A (en) * | 2018-06-07 | 2018-11-02 | 安徽海锂子新能源科技股份有限公司 | A kind of lithium battery Soft Roll welding soldering set tooling |
| CN211437142U (en) * | 2019-09-26 | 2020-09-08 | 上海君屹工业自动化股份有限公司 | Clean mechanism of lithium cell laser welding anchor clamps copper mouth |
| CN211438587U (en) * | 2019-11-20 | 2020-09-08 | 深圳市嘉联激光有限公司 | Laser welding apparatus |
| CN111112836A (en) * | 2020-01-20 | 2020-05-08 | 大族激光科技产业集团股份有限公司 | Integrated laser continuous welding device and battery assembling equipment |
| CN212552253U (en) * | 2020-05-26 | 2021-02-19 | 捷威动力工业嘉兴有限公司 | Laser welding dust removal mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113172338A (en) | 2021-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113172338B (en) | Dust removal and slag removal mechanism for laser welding of lithium battery | |
| CN109434234B (en) | Battery string repairing device | |
| CN107931837B (en) | Automatic welding processing technology for solar photovoltaic module | |
| CN106695045B (en) | Automatic unpick and weld detinning equipment | |
| CN209532330U (en) | Battery strings device for repairing | |
| CN114985931A (en) | Power battery module welding equipment and welding method thereof | |
| CN115255620A (en) | 4680 cylinder electricity core current collector dish laser welding equipment | |
| CN101913030B (en) | Metal plate welding equipment eliminating deformation and stress by using ultrasonic waves | |
| CN219703900U (en) | Quick cooling device of welding machine | |
| CN210878135U (en) | Laser cutting device for mechanical parts | |
| CN211727943U (en) | Dust removal type laser cutting machine for processing metal plates | |
| CN211028551U (en) | Multi-station intelligent optical fiber laser welding machine working platform | |
| CN216264160U (en) | Quick cooling device of welding machine | |
| CN210755839U (en) | Welding dust removal assembly and welding tool for battery module | |
| CN212918106U (en) | Perforator bullet clamp pipe laser cutting equipment convenient to clearance | |
| CN213857604U (en) | Welding equipment | |
| CN213224782U (en) | Laser cutting machine convenient to fix panel | |
| CN211516462U (en) | Laser cutting equipment convenient to installation | |
| CN213614732U (en) | Plasma cutting positioning device for automobile longitudinal beam | |
| CN213105032U (en) | Plasma cutting machine | |
| CN219075067U (en) | Intelligent mechanical part working platform | |
| CN221337069U (en) | Welding device for end face projection welding bolt | |
| CN118081266B (en) | Welding fixture for mechanical manufacturing | |
| CN218081088U (en) | Welding robot workstation | |
| CN221210346U (en) | Welding workbench for metal splicing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |